Interactions between 25 mothers and their developmentally delayed children (ages 2-5) during 15 minutes of semi-structured free play were coded independently with a global rating scale and a behavior count coding scheme. Correlational analyses were performed around three central themes: (1) the nature of the relationship between maternal…

Six experiments involving 262 children (as young as 16 months and as old as fifth grade) indicate that the basic framework for coding location is present early in life and that later development consists of an increasing ability to impose organization on a broad range of bounded spaces. (SLD)